Operation; Pressure Relief Procedure; Flush The Equipment - Graco Python A25115 Instructions - Parts Manual

Operation

Pressure Relief Procedure

Follow the Pressure Relief Procedure whenever
you see this symbol.
This equipment stays pressurized until pressure is
manually relieved. To help prevent serious injury from
pressurized fluid, such as skin injection and splashing
fluid, follow the Pressure Relief Procedure when
you stop dispensing and before cleaning, checking, or
servicing the equipment.
NOTE: Always discharge fluid into an approved con-
tainer or location.
1. Shut off all fluid and air lines (A, K, & P) using shut-
off valves (H).
2. Disconnect air supply lines (A).
3. Disconnect timing valve (22) to vent internal trapped
pressure.
22
F . 3 Disconnect timing valve
IG
4. Use a flathead screwdriver to turn the prime/bleed
valve (20) slowly counter-clockwise to relieve pres-
3A4386E
sure. (Use a hex wrench for PCI-xxx-xxH pumps.
See Configuration Number Matrix, page 4.)
5. Slowly disconnect fluid lines (K & P) from check
valves (L & M).
6. Reconnect timing valve (22).

Flush the Equipment

To avoid fire and explosion, always ground equipment
and waste container. To avoid static sparking and
injury from splashing, always flush at the lowest pos-
sible pressure.
• Flush with a fluid that is compatible with the fluid
being dispensed and the equipment wetted parts.
1. Follow the Pressure Relief Procedure.
2. Connect inlet to the supply source of the flushing
fluid.
8
3. Connect outlet to a waste reservoir.
4. Run the pump until the dispensed fluid is predomi-
nately flushing fluid.
20
5. Follow the Pressure Relief Procedure.
Operation
17